I have a project where I need to detect whether a 12V circuit is live or not. If it is I want to close a switch (actually close a digital IO input on an Adicon SECU16 Digital IO controller).
I am not an EE and would prefer to find a component off the shelf that I can tie into the 12V circuit and provide the relay.
I could choose to not use digital (Supervised) input and instead do analog, but I really don't care how much voltage I'm seeing just whether it's on or off.
I'm capable of soldering a few components on a prototype board, but my lack of EE knowledge means I need some serious help selcting the right components. The simpler the better.
Thanks in advance.